Here's an interesting question...

...is the number 0 odd or even?  Now there are various ways you can approach this question.  If you go back a year or so, I was arguing that zero is not a number - it is in fact the essence of a lack of number, so on that basis 0 is neither odd nor even. But then...  one definition of an even number is a number which is exactly divisible by two.  Well 0 divided by two is 0.  Then again, another definition of an even number is a number which ends in 2,4,6,8 or 0 - and 0 fits that bill.  So you could argue that 0 is an even number.  Does it matter?  Do me a favour!